my hahaha comment was becuase I was suprised that I actually did the trick, and I never thought I would be able to take a record other then just tieing it, sorry it was a stupid comment I know.
I achieved this time by carefully whatching the tas (which is 13 seconds) using debug mode to figure out what the hell was going on when I went through the left wall, and why I was dieing, and save states to practice, but the final run was done in real time single segment (on an emulator but I was told emulators were legal).
its a difficult trick that requires some luck since (I think) it requires 1 frame timing when you can't see whats going on. but I'd say its far easier then the marble 1 and 3 tricks.
details: you probably can't tell whats going on in the tas, first when you go through the left wall you actually teleport to the far right of the level, obviously you die when you go below the bottom of the screen (I don't know why the screen decides to go up). second when you hear the taser jump he actually starts holding left so that he can spin through the tunnel just as the screen is going up, preventing you from going below it. (you can pass through the flag and invisible walls that should be there since your off the screen) then you just sit back and whatch the screen go by, and the tunnel pushes you back down and into the flag. I think you have to pass through the tunnel at the exact right frame with full speed.